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Chemistry, 01.07.2021 01:00 salihanegawo

Element X has a nucleon (mass) number of 19 and a proton (atomic) number of 9. Which group does X belong in? Choose one of the following and explain the answer. a) I b) III c) VII d) 0

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Element X has a nucleon (mass) number of 19 and a proton (atomic) number of 9. Which group does X be...
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